Strainer and perforate discharge for lamps.



PATENTBD P1 2:B,25, 190s. c, M. 'LUNGREN. STRAINER' AND PERF-ORATEDISCHARGE FOR LAMPS.

APPLICATION FILED FEB. 20, 1906.

gilt?! \m WITNESSES. I WC L Ana/Mrs UNITED STATES PATENT OFFICE.

CHARLES M. LUNGREN, OF BAYONNE, NEW JERSEY, ASSIGNOR TO THE SAFETY GARHEATING & LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

STRAINER AND PERFORATE DISCHARGE FOR LAMPS.

Specification of Letters Patent.

Patented Feb." 25, 1908.

Application filed February 20. 1906. Serial No. 302.006.

' skilled in the art to which it appertains to make and use the same.

This invention broadly relates to gas-burning apparatus, but moreparticularly it con cerns improvements in that species thereof commonlydesignated as mantle lamps. However, as it is applicable with manyeminent characteristic advantages to mantle lamps of the inverted type,it will be conducive to clearness to disclose the invention through itsembodiment in such connection. In apparatus of this character,particularly when employed under conditions in which considerable dustor other foreign matter pervades the air, as in connection with railroadservice, much difficulty has been experienced in keeping the injectornozzle in per fect order and free from the foreign matter which tends torapidly accumulate in the ori fice of the nozzle and clog the flow ofgas therethrough. The tro uble arising from this defect in prior devicesof this nature is especially annoying in systems in which a rela tivelyhigh gas pressure is adopted, since the nozzle aperture takes the formof a fine bore, which, accordingly, maybe very easily obstru'cted to aserious extent by the fine grit or cinders invariably suspended intheair presen t in ordinary railroad cars. The cleaning of suchobstructed nozzles is at best a delicate operation which, unlessskilfully carried out, may result in such alterations in the shape ofthe bore that the effectiveness of the injector action will be greatlydiminished.

This invention, accordingly, has in view, among other objects, theprovision of a simple and inexpensive expedient designed to overcome theforegoing defects, whereby the objectionable foreign matter will becompletely excluded from the injector nozzle and the operation of thelatter enhanced.

A further object within the purpose of this invention consists in animproved means of supplying the requisite amount of air to the gases,whereby a highly efficient carburized burning mixture is produced.

A further object consists in effecting an arrangement of parts wherebythe admissionof fresh air to the injector will be insured and wherebythe products of combustion will be discharged at a proper point.

A further object of this invention is to so devise and arrange thevarious parts going to take up the complete structure that access mayconveniently be had to the various essentially operative. features ofthe same, in

order that they may be cleaned or repaired, as occasion may demand.

Another object is to provide a gas-illuminating apparatus which, from anoperative standpoint, will possess a high degree of efficiency anddurability in usage, and which,

structurally considered, will be of the utmost simplicity consonant withthe ends to be attained, being composed of but few parts, all adaptedfor being made at a minimum of cost and individually so formed as to becapable of being easily assembled into ane at and compact arrangementfor accomplishing the purposes intended.

Other objects and advantages will be in part obvious and in part pointedout hereinafter.

With these and other ends in view, this invention accordingly consistsin the features of construction, combinations of parts, and arrangementof elements which will be exemplified in the embodiment thereofhereinafter described and the scope of the applicationof which will beindicated in the following claims.

In order that the invention may be more fully understood and madecomprehensible to others skilled in its relating arts, drawingsillustrating a convenient manner bf carrying out the same are appendedas a part of this specification, and, while the controlling principlesof the invention may be otherwise applied by modifications fallingwithin the scope of the claims, the hereindisclose d embodiment is thatwhich will ordinarily be preferable to employ in practice, and isregarded as representing substantial improvements over the many impliedand obvious variations of the same.

The drawing illustrates in sectional elevation the assembled details ofthe hereindescribed embodiment of my invention as arranged ready foruse, and in such drawing, like numerals of reference refer tocorresponding parts throughout.

In commercially carrying out this invention, it will be understood thatit may be applicable to various types of lamps according to thepractical dictates of particular circumstances, but the herein disclosedtype of inverted lamps will, in most instances, be found to be wellfitted for use in conjunction with the invention. may be suspended froma suitable bracket, which may depend'directly from a ceiling, or, asshown in the drawing, may extend from a side wall of the car or otherinclosure within which the device is to be used. Thus, 1 re fers to awall-plate of such nature as will orparts with one another.' Such nipplemay conveniently be provided in its upper reduced end with a bore 7,which enlarges toward the other end and forms a chamber constituting afeature of a suitable strainer means. Such nipple, in its preferredform, provides intermediate its ends a cylindrical portion 9 withperipheral screw threads which engage with a locknut 10, and at itslower end such nipple is conically reduced and is provided withperipheral threads 11. This conical end takes into a corresponding seatin the upper end of a part 12 and, be cause of the said conicalarrangement, the nipple is adapted for being readily brought into aperfect fluid-tight union with said part and may be permanently lockedin place through the operation of locknut 10 which engages with theupper end of said part. At its lower end, said part is reduced indiameter and at the extreme end of said reduced portion is, providedwith peripheral threads,

as indicated by 13, while the intermediate portion, indicated by 14, ispreferably of smooth contour. The purpose of this construction is toenable the said part to be brought into a screw-threaded relation withthe lamp body portion 15 with the adjustable screw 16 carried by thesame in contact with the smooth portion, whereby these interfittingelements may be locked together against any undesirable reflex relativemovement without effecting any undue injury to the threads, which mightotherwise result. It will be noted that, because of the reduced end, ashouldered abutment 17 is afforded, and this prevents the telescoping ofthe two mentioned parts to an excessive extent. As a consequence of theforegoing arrangement of parts, an extension member is formed In suchform, the lamps which is well adapted for being adjustably.

ing above the bottom thereof, and is open only at its upper end by meansof a series of side apertures 20, the area of which may be regulatedthrough the adjustment of a screw 21, which also serves as a closure forthe upper end of said strainer tube. end and within its bore, one ormore finemesh sieves may also be provided to insure a perfect diffusionand act as a safeguard against the furthertravel of any foreign matternot deposited in the collection chamber, if it is so desired. It will benoted that such strainer conduit is of somewhat less diameter than thecollection chamber, and as a consequence, the through-flowing gas willtake a course such that the foreign matter will be de osited in thelower end 23 which serves as a ust receptacle. The nozzle 24 is providedwith the usual fine aperture and is peripherally screw-threaded to thelower end of member 12 and thereby made adjustable with re- At itslower' and, intermediate the extreme ends of such laterally-extendingconduits and the central portion, one or more suitable air-escape ventswill usually be provided, indicated by the dotted lines 27, forconveying away the vitiated products of combustion and discharging thesame at a distance from the air inlets, as will be more fully describedhereinafter;

The burner nozzle 28 is here shown in screw-threaded attachment to thelamp body 15', but it will be understood that any other form orarrangement of the nozzle, as well as of the parts, may be employed asoocasion may make requisite, but that shown is regarded as the preferredform and is generally used in practice in connection with the furtherdetails of the lamp. 1

The shown supportingmeans for the mantle, globe and shade conforms tothe invention disclosed in the co-pending application,

Serial No. 302,426, filed February 23rd, 1906, v

and, accordingly, need not be here specifically described. It will benoted, however, that this disclosure exemplifies a specific manner ofutilizing the said means not shown in the cited application, in that adifferent and more beneficial circulation of airand products ofcombustion is obtained.

An important feature provided by this invention resides in thearrangement and form of the parts whereby fresh air is-caused to mixwith the products of combustion prior to or during their escape upwardand through the dischargeconduit. To this end, the discharge conduitmeans is perforated at suitable points, and preferably such perforationswill be arranged so that the intaking fresh airw'ill' flow along thedesired course Without impeding in any way thedischarge of the productsof combustion. The shown embodiment is well adapted to carry out thedesired circulation, and to, that end, the same provides an air inletpassage 33 leading from the exterior of globe 34, which acts as adeflector and conduit for the passage of the products of combustion. Thelatter follow the course of arrows 35 and flow directly upward andthrough the channels 27 in the manner indicated by arrows 36. This notonly prevents any undue heating-of the parts, but materially improvesthe action of the lamp and, by increasing the volume of the dischargedgases, renders the flow thereof more certain and uniform. Actualpractice has established the fact that a lamp con structed in thismanner will also be less heated in the more distant features and isconsequently less liable to become tarnished or objectionably affect thefinish of adjacent woodwork. Furthermore, the discharged vitiatedproducts are less heated and the danger of setting fire 'to adjacentparts is practically eliminated. Other obvious advantages accrue to thearrangement. WVhile the inlet passage 33 may be provided for in variousstructural ways, the shown exemplification is regarded as possessingpeculiar. advantages in that all the advantages of the other shownstructural features may be fully preserved to the lamp. In this form thesupport 37 will be spaced a distance from the bottom of the lamp body25, either by ad justably screwing .such support upon the burner nozzleor by providing suitable lugs or stops 38 adapted to space the supportfrom the lamp body.

A further feature of this invention lies also in the ventilator ordeflecting member which may consist of hollow shells 29 and 30, whichare perforate at top and bottom, and also intermediate, if desired, andmay be given any desired ornamental configuration for the sake ofeffect. Such parts interfit along matching faces 31 and, at theirextreme ends, abuts with the lamp body and aforesaid dust removingmember respectively, and are thereby firmly retained in place.

The operation of the device may now be briefly explained.

The gas enters originally from the conduit 4 and passes into the chamber8 at the upper end thereof and at first flows at a high velocity in adownward direction and ultimately turns and finally escapes into thestrainer tube 19 through the lateral orifices 20 at the upper endthereof. It will be clear that, while the gas, which is of little mass,is capable of being abruptly checked in its flow, solid foreign matter,because of its greater mass, will be projected toward the latter andwill lodge in chamber 23, being restrained against escape by the variousside walls. The gas, however, is free to outflow' through the strainer,being ultimately ejected from the orifice of the nozzle 24 in a streamwhich flows by the inner mouth of the airinlet nozzle 26 through which asuflicient amount of fresh air will be supplied and subsequentlydiffused with the gas to form a,

homogeneous mixture suitable for combustion adjacent the mantle. Theproducts of such combustion, because of their heated condition, rapidlyrise and, passing through the channels indicated by dotted lines 27,ultimately escape through the openings in the upper portion of themember 30. It

. will be also noted that, in'actual service, the

parts tend to become somewhat heated, and this also aids in maintainingthe desired circulation, and, as a consequence, fresh air will becontinually drawn through the lower openings 33 and by the mouth of theinlet openings 26, through which, therefore, only fresh air may bedrawn. I

It will now be apparent that this invention is one well adapted toattain the aboveenumerated objects and advantages. It is an essentiallypractical device and is specially adapted for hard usage in connectionwith railroad service and, moreover, it admits a construction such thatthe foreign matter suspended in the gas will be excluded from contactwith the nozzle, and, therefore, the latter may be used throughout longperiods without becoming impaired or disarranged. Furthermore, thearrange ment is such that the products of combustion are discharged at adistance from the inlet orifice of the air supply, and thus thecombustion may take place in a perfect manner without any undesirabledilution of the carburized gases.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is 2 1. A device of the nature disclosed comprisingin combination, a lamp-body having a depending burner-nozzle, a hollowshell encompassing the upper part of said lampbody for receiving theproducts of combustion rising from said burner-nozzle, said shell havingin its lower portion perforations for enabling relatively cool air toenter said body for receiving the products of combusfor enablingrelatively cool air to enter said which said products are received bysaid enabling relatively cool air to enter said shell an inspiratorarranged in said lamp-body and encompassing the upper part of saidlampucts prior to their ultimate discharge from said shell, and aninspirator having one or more laterally extending air inlets terminatingwithin said shell below the region in shell.

2. A device of the nature disclosed comprising in combination, alamp-body having a depending burner-nozzle, a hollow shell encompassingthe upper part of said lamption rising from said burner-nozzle, saidshell having in its lower portion perforatlons shell and interminglewith said rising products prior to their ultimate discharge from saidshell, and an inspirator having one or more laterally extending airinlets terminating within said shell remote from the path of theproducts escaping through said shell.

3. A device of the nature disclosed comprising in combination, alamp-body having a depending burner-nozzle, a hollow shell encompassingthe upper part of said lampbody for receiving the products of combustionrising from said burner-nozzle, said. shell having in its lower portionperforations for to commingle with said rising products prior to theirultimate discharge from said shell,

having one or more laterally extending air inlets arranged adjacent thelower end of said perforate shell, upwardly extending channels forconveying products of combustion past said air inlets to preventcontamination of the intaken fresh air by said products, and a globesupport secured to said lamp-body and having perforations enabling airto intermingle with the rising products of combustion prior to theirpassage through said channels.

4. A device of the nature disclosed comprising in combination, alamp-body having I a depending burner-nozzle, a hollow shell body forreceiving the products of combustion rising from said burner-nozzle,said shell having in its upper portion perforations for enabling saidproducts to escape from said shell and an inspirator having one or morelaterally extending air inlets terminating adjacent the lower end ofsaid perforate shell.

5. A device of the .nature disclosed comprising in combination, alamp-body having a depending burner-nozzle, a hollow shell encompassingthe upper part of said lampbody for receiving the products of combustionrising from said burner-nozzle, said shell having in its upper portionperforations for enabling said products to escape from said shell, andan inspirator having one ormore laterally extending air inletsterminating within said shell below the region in which said productsare received by said shell.

6. A deviceof the nature disclosed comprising in combination, alamp-body having a depending burner-nozzle, a hollow shell encompassingthe upper part of said lampbody for receiving the products of combustionrising from said burner-nozzle, said shell having in its upper portionperforations for enabling said products to escape from said shell, andan inspirator having one or more laterally extending air inletsterminating within said shell remote from the path of the productsescaping through said shell.

7. A device of the nature disclosed comprising in combination, alamp-body havin a depending burner-nozzle, a hollow shell encompassingthe upper part of said lampbody for receiving the products of combustionrising from said burner nozzle, said shell tending air inlets arrangedadjacent the lower end of said perforate shell, said lampbody channe forconveying products of combustion past said air inlets to preventcontamina tion of the intaken fresh air by said products, and a globesupport secured to said lampbody and having perforations enabling air tointermingle with the rising products of combustion prior to theirpassage through said channels.

8. A device of the nature disclosed comprising in combination, alamp-body having a depending burner-nozzle, a hollow shell encom assingthe upper part of said lampbody f I' receiving the products ofcombustion rising from said burner-nozzle, said shell having in itsupper portion perforations enabling the products of combustion to escapeand having in its lower portion perforations for enabling relativelycool air to enter said shell and intermingle with said rising productsprior to their ultimate discharge from said shell, and an inspiratorhaving one or more laterally extending air inlets terminating withinsaid shell below the region in which said products are received by saidshell.

9. A device of the nature disclosed comprising in combination, alamp-body having a depending burner-nozzle, a hollow shell encompassingthe upper part of said lampbody for receiving the products of combustionrising from said burner-nozzle, said shell having in its 11 per portionperforations enabling the prod ficts of combustion to escape and havingin its lower portion perforations for enabling relatively cool air toenter said shell and intermingle with said rising products prior totheir ultimate discharge from said shell, and an inspirator having oneor more laterally extending air inlets terminating withinsaid shellremote from the path of the products escaping through said shell.

10. A device of the nature disclosed comprising in combination, alamp-body having a depending burner-nozzle, a hollow shell encompassingthe upper part of said lampbody for receiving the products of combustionrising from said burner-nozzle, said shell having in its upperportionperforations en abling the products of combustion to be discharged andhaving in its lower portion perforations for enabling relatively coolair to enter said shell and commingle with said rising products prior totheir ultimate discharge from said shell, an inspirator arranged in saidlamp-body and having one or more laterally extending air inlets arrangedadjacent the lower end of said perforate shell, said lampbody providingan upwardly extending channel for conveying the products of combustionpast said air inlets to prevent contamination of the intaken fresh airby said products, and a globe support secured to said lamp-body andhaving perforations enabling air to intermingle with the rising productsof combustion prior to their passage through said channels.

11. A device of the nature disclosed comprising in combination, anelongated vertically arranged lamp-body adapted to receive gas at itsupper end and to discharge said gas mixed with air at its lower end, aninspirator arranged in said lamp-body intermediate the upper and lowerends thereof, one or'more air tubes extending laterally from the nippleof said inspirator and terminating a short distance from the verticalaxis of said lamp-body, an incandescing de- 'Vice arranged adjacent thelower end of said lampbody, said lamp-body providing a channel for theescape of the products of combustion, said channel extending upwardlybetween the outer terminals of said air tubes and said lampbody, and areticulated shell encompassing said lamp-body above said air tubes andadapted to receive and convey upwardly the products of combustiondischarged by said channel.

12. A device of the nature disclosed comprising in combination, a burnerhaving a mixing chamber and a nozzle depending therefrom, said burnerproviding air inlets opening withina deflecting means and leadinglaterally to said chamber and providing upright escape channels openingabove and below said inlets, and a deflecting means extending below theend of said nozzle and adapted to direct the products of combustiontoward the lower ends of said esca e channels whereby they may traverseand be discharged above said inlets, said deflecting means being spaceda distance from said burner, whereby fresh a1r may be conveyed into andfrom said vents to cool the same and facilitate the discharge of saidproducts therefrom. i

13. In a device of the class described, a member'consisting of aplurality or telesco ing sections constituting the. inclosing walls of achamber, said member providing an inlet orifice adjacent the upper endof said chamber, and an outlet orifice above the bottom thereof, wherebygases may flow through said chamber and deposit foreign matter therein.

14. In a device of the class described, a

member consisting of a plurality of detachable telescoping sectionsforming the inclosing walls of a collection chamber, said member havingan inlet orifice leading intov the upper end of said chamber andarranged to deliver a stream of gas toward the bottom thereof, andhaving an outlet orifice above said bottom whereby gas may outflow afterdepositing the foreign matter intermingled therewith.

1.5. In a device of the class described, a member consisting of aplurality of telescoping sections having conical contacting 'faces andforming the inclosing walls of a collection chamber, said memberproviding a substantially vertical inlet orifice leading into the upperend of said chamber, whereby gas may be delivered under considerablevelocity into said chamber and toward the bottom thereof to depositforeign matter thereon, and having transverse escape orifices above saidbottom whereby the purified gas may flow from said chamber.

16. In a device of the class described, a member consisting of aplurality of detachable, telescoping sections in fluid-tight union alongconical, threaded peripheries, said sections constituting inclosingwalls of a collection chamber, and means whereby gas flowing throughsaid chamber will follow a tortuous course and deposit foreign mattertherein.

17. In a device of the class described, a member consisting of aplurality of telesco ing sections constituting the inclosing wa is of achamber, the one section providing an inlet orifice adjacent the upperend of said chamber, and a conduit extending from the other section andterminating adjacent the upper end of said chamber and provided near itstermination with an aperture in communication with said chamber, wherebygas may outflow therefrom after depositing the foreign matterintermingled therewith.

18. In a device of the class described, a member consisting of aplurality of telescoping sections having conical contacting faces andconstituting the inclosing walls of a collection chamber, one of saidsections rovid-' ing a substantially vertical inlet orifice eading intothe upper end of said chamber, whereby gas may be delivered underconsiderable velocity into said chamber and toward the bottom thereof todeposit. foreign matter thereon, and a conduit rising from the sectionconstituting the bottom wall of said chamber and terminating adjacentthe aforesaid inlet orifice, whereby the purified gas may outflow fromsaid chamber through the upper end of said conduit.

19. In a device of the'class described, a member consisting ofdetachable, telescoping sections in fluid-tight union along conical,threaded faces,said sections constituting the inclosing wallsof acollection chamber, one of said sections providing a substantiallyvertical inlet orifice leading into the upper end of said chamber,whereby gas may be delivered under considerable velocity into saidchamber and toward the bottom thereof to deposit foreign matter thereon,and a conduit extending from the other section and terminating adjacentthe upper end of said chamber and rovided near its termination with alatera ly extending aperture establishing communication with saidchamber whereby gas may outflow therefrom after depositing the foreignmatter intermingled therewith.

w 20. In a device of the class described, a

' member having a collection chamber provided with conduits leadingthereto and therefrom and arranged to. compel gases to abruptly turnwhen passing through said chamber and deposit solid foreign mattertherein, an injector nozzle in communication with the conduit leadingfrom said chamber, and one or more air conduits transversely leadingtoward the end of said nozzle, and a perforate inclosing shellencompassing said parts and adapted to admit fresh air through its lowerend and discharge the vitiated products of combustion through its upperend. 21, In a device of the class described, a member having an internalcollection chamber provided at its upper end with a vertical inletorifice and having an escape orifice at said end transversely leadingfrom said chamber, whereby gases will abruptly turn and deposit solidmatter in flowing through said chamber, a nozzle in communication withsaid escape orifice, one or more air conduits transversely leading tothe end of said nozzle, and a shell encompassing the aforesaid parts andprovided with top and bottom perforations for the escape of contaminatedand the admission of fresh air respectively.

22. In a device of the class described, a burner having a mixin chamberand terminating in a nozzle, an a conduit extending below the lower endof said nozzle and arranged to receive and discharge the products ofcombustion therefrom, said conduit having one or more lateral openingsadapted to introduce air and diffuse the same with saidproducts, saidburner providing air inlet passages opening opposite certain of saidopenings below the point of discharge of said products whereby fresh airmay be con veyed to said mixing chamber.

23. In a device of the class described, a burner having a mixing chamberand terminating in a downwardly extending nozzle, and a conduitextending below said nozzle and adapted to receive the products ofcombustion therefrom and discharge the same at its upper end, saidconduitproviding one or more lateral openings adapted to introduce freshair into said conduit and thereby cool the same, said burner having anair inlet opening opposite certain of said openings below thedischargeend of said conduit and leading into said mixing chamber, whereby freshair uncontaminated by products of combustion may be conveyed thereto.

24. In a device of the class described, a burner having a mixingchamber, transverse inlets leading thereto, said burner providing ventsadapted to receive the products of combustion and discharge the sameabove said inlets, and a perforate ventilator encompassing said burnerand adapted to receive and discharge the said roducts of combustion andsimultaneously irect fresh air; toward said inlets.

25. In a device of the class described,'a burner nozzle having an airinlet, means for conducting the products of combustion therefrom, saidmeans being provided with lateral openings adapted to diffuse relativelycool air with said products prior to their discharge from said means,and a perforate inclosure arranged to receive said mixture anddischlarge the same at a distance from said air in ct.

26. In a device of the class described, a burner having a mixing-chamberand terminating in a nozzle, a conduit extending below the lowerend ofsaid nozzle and arranged to receiveand discharge the roducts ofcombustion therefrom, said con uit having one or more lateral openingsadapted to introduce air and diffuse the same wlth said products, saidburner providing inlet passages opening below the point of discharge ofsaid products whereby fresh air may be conveyed to said mixing chamber,and an inclosure having top and bottom openings whereby the saidproducts may discharge through the top and fresh air be drawn throughthe bottom and directed toward said inlets.

27. In adevice of the class described, a burner having a mixing chamberand terminating in a downwardly extending nozzle, a conduit extendingbelow said nozzle and adapted to receive the roducts of combustiontherefrom and disc arge the same at its upper end, said conduitproviding a lateral perforation adapted to introduce fresh air into saidconduit and thereby cool the same,

said burner having an inlet opening below the discharge end of saidconduit and leading into said mixing chamber, whereby fresh airuncontaminated by products of combustion may be conveyed thereto, and aninclosure having top and bottom openings, whereby the said products mayescape through the top and fresh air may be drawn through the bottom anddirected toward said inlets.

28. In a device of the class described, a burner having a mixingchamber, a nozzle depending therefrom, said burner providing inletsleading laterally to said chamber and providing transverse dischargevent openings above said inlets, and a deflecting means extending belowthe end of said nozzle and adapted to convey the products of combustiontherefrom toward the lower ends of said vents, said deflecting meansbeing spaced at a distance from said burner, whereby fresh air may beconveyed into and from said vents to cool the same and facilitate thedischarge of said products therefrom, and a perforate inclosure arrangedto receive and discharge said products above said inlets and adapted tosupply said inlets with fresh air.

29. In a device of the class described, a burner,-means for internallysupplying the same with fresh air, means providing diverse channelsadapted respectively to convey products of combustion from said burner,intermingle the same with fresh air and ultimately discharge the saidmixture at a distance from the inlet of the aforesaid means, and aperforate inclosure for said parts.

30. In a device of the class described, a burner having a mixingchamber, and transverse inlets leading thereto, said burner providingvertically extending vents through the body thereof adapted to receiveand discharge the products of combustion above said inlets, and aperforate ventilator encompassing said burner and adapted to receive anddischarge the said products of combustion and simultaneously directfresh air toward said inlets.

In testimony whereof I affix my signature, in the presence of twowitnesses.

CHARLES M. LUNGREN.

Witnesses FRANK STUART, ROBERT S. BLAIR.

